Exomoon discovery: astronomers report the strongest evidence yet for a natural satellite outside our solar system — a Jupiter-mass body orbiting a brown dwarf 73 light-years from Earth, detected using ...

A careful statistical comparison of observations recorded by NASA's Juno mission and the Planetary Science Institute's Io ...

Astronomers have discovered a remarkably tiny group of six young galaxies just 1.2 billion years after the Big Bang. This may ...

That hidden ocean has made Europa one of the most compelling places in the solar system to study the conditions that might ...

With artificial intelligence doing its best to inveigle its way into the arts, there’s no better antidote than a late night ...

In a novel three-tiered hierarchical system, the star CD-35 2722 is orbited by a brown dwarf that, in turn, is orbited by a ...

Discovery of a distant Jupiter-mass object could pave the way for detection of exomoons — plus, a rare transmissible cancer found in catfish.

This week, we explore worlds in the making, from the first-ever evidence of moons forming around a distant exoplanet to ...

Two giant planets lighter than cotton candy are giving astronomers a rare new window into the origins of some of the galaxy's strangest worlds.

"The JWST allows us to observe in unprecedented detail environments that until a few years ago were beyond our reach." ...

Barbault’s Basket peaks this week, a rare planetary alignment linking Neptune, Uranus, Jupiter, and Pluto — here’s what this ...

When I was opening my first astronomy books, one of the most mysterious images I ever saw was a blurred-out orb with red and yellow jets shooting diagonally in either direction. I know that’s a very ...